CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2020-13962
High (7.5). EPSS 3.1% chance of exploitation in the next 30 days.
Qt 5.12.2 through 5.14.2, as used in unofficial builds of Mumble 1.3.0 and other products, mishandles OpenSSL's error queue, which can cause a denial of service to QSslSocket users. Because errors leak in unrelated TLS sessions, an unrelated session may be disconnected when any handshake fails. (Mumble 1.3.1 is not affected, regardless of the Qt version.)
Severity
- EPSS
- 3.1% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoraproject:fedora
- mumble:mumble
- opensuse:leap
- qt:qt
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00004.html
- https://bugreports.qt.io/browse/QTBUG-83450
- https://github.com/mumble-voip/mumble/issues/3679
- https://github.com/mumble-voip/mumble/pull/4032
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X6EDPIIAQPVP2CHL2CHDHJ25EECA7UE/